Hose-coupling.



IVI. MEEKS.

HOSE COUPLING.

ma. la, 1914. RENEWED SEPT. le, 1915.

Patented Oct. 26, 1915.

APPLICATION FILED Manning Meeks.

STATE@ PATENT @Wlm MANNNG WIEEKS, OF CEBAR RAPIDS, IOWA.

HOSE-CO'UPLING.

Liemeer.

Specification of Letter-s Patent.

llatentedlct. 2G, 19115.

Application filed February 13, 1914, Serial No. 818,603. RenewedSeptember 16, 1915. Serial No. 51,090.

To all whom it may concern.'

le it known that MANNING Manns, a citizen of the United States, residingat Cedar Rapids, in the countyof Linn and State of Iowa, has inventedcertain new and useul improvements in Hoseouplings, of which thefollowing is a specification.

llliis invention relates to improvements in hose couplers and itsleading object is to provide a hose coupler capable of being quicklyapplied and adapted to efficiently couple hose employed in connectionwith the use of high pressure gas and fluids.

Illhe invention is embodied in a simple construction, which embraces anipple having one or more circumscribing grooves into which the material'of the hose is compressed, a clamping sleeve formed in two companionsections substantially like each other and provided vwith ribs adaptedto force the hose material into the nipple groove or grooves, as thecase may be, and so formed that a uniform four-point closing action andpressure is obtained, and a nut threadable on the sleeve, which has aconical external thread and adapted to close the sleeve around the hoseto compress the hose material into the nipple groove or grooves, and tothereby complete the seal and to lock the sleeve and the hose to thenipple against relative longitudinal movement.

l/Vith the above and other objects in view, the invention comprisescertain novel and useful constructions of parts, combinations andfunctions resulting from the combinations, clearly described. in thefollowing specification and fully illustrated in thel accompanyingdrawings, in which Figure 1 is a longitudinal sectional view through thecoupler, applied to the end of one of the nipples. Fig. 2 is atransverse sectional view taken on line A-A of Fig. looking in thedirection of the arrows. Fig. 3' is a detail perspective view of one ofthe sections of the clamping sleeve. Fig. 4 is a detail perspective viewof one of the nipples, the other being a duplicate thereof. Fig. 5 is adetail sectional view of a modified form of the clamping sleeve.

Referrin to the accompanying drawings, which are intended to illustrateone application of the invention, and which are not intended to definethe proportions and only relations of the parts shown, 5 designates asecton of hose, which is composed of a combination of rubber and canvas,armored or unarmored, as experience may advise, and t5 designates one ofthe nipples, the other not being shown.

' rllhe nipple 6 is provided with a cylindrical. outer surface and isformed with two circumscribing grooves (3 and G, which are spacedlongitudinally from each other, to provide the relatively uniformcylindrical surface 6c therebetween. External screw threads 6d areformed on one end portion of the nipple 6, and the opposite end isslightly flared at 6e and is beveled at Gf, to form a non-cutting hoseengaging surface, which is adapted to slidably lit within the hose 5.

The grooves G and (51 may be formed by grinding or by other means, andthe groove (3 is located adjacent the liare (Se, so that said tl arecooperates with said groove to complete the seal and to lock the nippleto the hose and the clamping sleeve, designated by the reference numeral7.

'llhe clamping sleeve 7 is formed in two companion sections, 7iL and 7",each section having a transverse locking projection or rib 8, locatednear one end and a second transverse locking rib 8b., located at theother end. The locking ribs 8fl and 8b are substantially semicircular incross section and project inwardly to register wim the circun'iscribinggrooves G and 6b and force the material of the hose into said grooves. Arelativelysmooth, cylindrical surface 8 is provided' between the lockingribs 8hl and 8". It is understood, however, that the surfaces (5c and 8majy be slightly roughened to increase the frictional engagement of thehose and the clamping sleeve.

Each section of the clamping sleeve 7 is formed with a inedially locatedlongitudi nally extending groove 8, which has a depth suliicient toleave a relatively thin portion which holds the halves of each sleevesection, constituting quarters of the complete sleeve, united to eachother. The grooves 81 extend through the locking ribs 8 and 8".

The clamping sleeve 7 is formed with a conical external surface which isprovided with a screw thread 9, and the larger end of the sleeve isprovided with a hexagonal projection l0, adapted to be engaged by awrench to hold the sleeve during theassembling or 'disassemblingoperation.

The companion sleevev sections 7 and 7* are substantially duplicates ofeach other ynipple 6 is grasped or and arel provided, each with meetingfaces 8", which are adapted to contact With each other when the sectionsare assembled. The portions of the screw thread 9 on one section alsobeing adapted to match `with the portions of the screw thread on theother section.

A solid, non-split nut 11, having a bore tapered and threaded tocorrespond with the taper and thread of the sleeve 7, is threaded on thesleeve, and is adapted to hold, the sections 1of the sleeve clampedaround the hose and the nipple, and to effectively seal the hose on thenipple.

In applying the improvedcoupler the held and the flared end thereof isforced into the hose 5. The sections 7 and 7b of the clamping sleeve 7arethen placed around the hose, with the locking ri-bs thereof inalinement with the grooves of the nipple. The companion sections of theclamping sleeve can then,` be forced into clamping engagement with thehose by slipping the nut 1l on the nipple 6 and threading saidnut on thesmaller end of the clamping sleeve. This threading action will draw thesections of the sleeve to- Ward each other and will force the materialofthe hose lying'- between the locking ribs and the nipple grooves intosaid grooves, thereby effectively locking the 'clamping sleeve to thenipple against relative longitudinal movement thereon and efficientlysealing the connection vbetween the hose and the clamping sleeve. Theflare 6 of the nipple, by slightly expanding the material of the hoseoutward of the locking rib cooperating with the groove G, coperates withsaid groove to seal the connection between the sleeve and the hose andto lock the sleeve to the hose and the nipple (i. As the grooves 6 and6b of the nip le are approximately equal in depth to onealf, orthereabouts, of the thickness of the Wall of the hose, and the lockingribs 8n and 8b are adapted to positively deflect the material of `thehose into the grooves 6 and 6b, and to hold said material compressed insaid grooves, under the positive clamping action of the solid nut 11, apositive longitudinal lock between the sleeve and the hose and thenipple is provided, which is of such a nature that the hose cannot bepulled from between the sleeve and nipple, as by the Skinning of theouter coat of the hose.

By reason of the longitudinal grooves 8d in the sections of the clampingsleeve said sections are caused to close in such a manner that asubstantially uniform four-point pressure is exerted on 'the hose andthe nipple. This prevents an uneven compression of the hose on thenipple, and a positive and dependable seal. IVhen the sleeve is closedvery tightly around a hose on the nipple the sid e Walls of the grooves8 may actually pression thereof, said sleeve -tapered external thread,and a nut threadcontact with other, due to the contraction of ,thesections of the sleeve, and the halves of each section under the drawingaction of the nutlrll. lVhen the nut is Unthreaded the halves of eachsection will naturally resume their original relations, due to theresiliency of the material of which the sections are composed and to thebridge portions connecting the halves of each sleeve section.

The improved coupler is exceedingly simple in construction, easy tooperate, and can be cheaply manufactured. It is understood that I amentitled to use any changes in the construction of the parts of thecoupler, in their proportions and combinations, as will come Within thescope of the invention delined inthe following claim.

In Fig. 5 I have illustrated a modified form of the clamping sleeve,wherein I show beveled meeting faces 12 and 13 on the sections y12 and13 of the clamping sleeve. By this arrangement the cost of production ofthe sleeve may be materially reduced and the action of the sleeve underthe closing pressure of the nut will be materially improved.v Thebeveled meeting faces provide lap joints, which in turn provide asliding contact between the sections of the sleeve and allow for themaximum of compression of the sleeve under the action of the nut.

The compressing action of the sleeve sections will not be limited to thepoint of actual contact between the meeting faces ofthe sleevesections,but will continue until the nut has reached its limit of travel.

Having described my invention I claim In combination, a nippleconsisting of a, pipe of substantially uniform diameter formed withcircumscril'iing grooves eut therein, a part of said grooves being.located near the end of said nipple to be inserted in the hose and a,part being spaced therefrom to provide a cylindrical bearing siirface,the end of the nipple for insertion in the hose heilig flared largerthan the body of the nipple` a sleeve comprising two sections of equalsize mountable on the hose over the nipple, cach of said sleeve sectionshaving diagonal longitudinally extending meeting faces and transverseinternal ribs adapted to register with the grooves of the nipple and toforce the material of the hose therein, each sleeve section having a.medial longitudinally extending internal groove olf substantiallyuniform depth from one end to the other and extending from one end ofthe nipple to the opposite end, whereby the sleeve sections will yieldconcentrically around the hose to effect a uniform conihaving a ed onthe sleeve, the sleeve sections being adapted to slide von each other toincrease the force of compression and the flared end l of the nippleserving to spread the material of the hose around the adjacent end ofthe seeve to seal the joint therewith, the hose being interlooked Withthe nllpple and. sleeve by the internal ribs of the sleeve and thegrooves of the nipple.

